AMD Ryzen 9 6900HX vs AMD Ryzen 7 7840H

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We compared two laptop CPUs: AMD Ryzen 9 6900HX with 8 cores 3.3GHz and AMD Ryzen 7 7840H with 8 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 6900HX 's Advantages

Higher specification of memory (LPDDR5-6400 vs DDR5-5600)

AMD Ryzen 7 7840H 's Advantages

Released 1 years late

Better graphics card performance

Larger memory bandwidth (89.6GB/s vs 76.8GB/s)

Newer PCIe version (4 vs 4.0)

Higher base frequency (3.8GHz vs 3.3GHz)

More modern manufacturing process (4nm vs 6nm)

Lower TDP (35W vs 45W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 6900HX

1605

AMD Ryzen 7 7840H +12%

1800

Cinebench R23 Multi Core

AMD Ryzen 9 6900HX

14392

AMD Ryzen 7 7840H +24%

17887

Geekbench 6 Single Core

AMD Ryzen 9 6900HX

2097

AMD Ryzen 7 7840H +25%

2625

Geekbench 6 Multi Core

AMD Ryzen 9 6900HX

10086

AMD Ryzen 7 7840H +17%

11813

Blender

AMD Ryzen 9 6900HX

184

AMD Ryzen 7 7840H +7%

197

Geekbench 5 Single Core

AMD Ryzen 9 6900HX

1583

AMD Ryzen 7 7840H +20%

1909

Geekbench 5 Multi Core

AMD Ryzen 9 6900HX

10087

AMD Ryzen 7 7840H +13%

11494

Passmark CPU Single Core

AMD Ryzen 9 6900HX

3421

AMD Ryzen 7 7840H +15%

3947

Passmark CPU Multi Core

AMD Ryzen 9 6900HX

24494

AMD Ryzen 7 7840H +15%

28248

AMD Ryzen 9 6900HX

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AMD Ryzen 7 7840H

General Parameters

Jan 2022

Release Date

Jan 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

-

Rembrandt

Core Architecture

Phoenix

FP7

Socket

AMD Socket FP8

Radeon 680M

Integrated Graphics

Radeon 780M

-

Generation

Ryzen 7 (Zen 4 (Phoenix))

Package

-

Transistor Count

25 billions

6 nm

Manufacturing Process

4 nm

FP7

Socket

AMD Socket FP8

45 W

Power Consumption

35 W

95 °C

Peak Operating Temperature

100 °C

-

Foundry

TSMC

-

Die Size

178 mm²

-

Package

FP8, FP7, FP7r2

CPU Performance

8

Performance Cores

-

16

Performance Core Threads

-

3.3 GHz

Performance Core Base Frequency

3.8 GHz

4.9 GHz

Performance Core Turbo Frequency

5.1 GHz

8

Total Core Count

8

16

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

38.0

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-4800, LPDDR5-6400

Memory Types

DDR5-5600

64 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

89.6 GB/s

-

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

2000 MHz

GPU Base Frequency

-

2400 MHz

GPU Max Dynamic Frequency

2700 MHz

768

Shader Units

-

48

Texture Units

-

32

Raster Operation Units

-

12

Execution Units

12

15 W

Power Consumption

-

3.686 TFLOPS

Graphics Performance

10 TFLOPS

Miscellaneous

AMD Ryzen 9 6900HX

Official Website

AMD Ryzen 7 7840H

4.0

PCIe Version

4

16

PCIe Lanes

20

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